5. Population (2006 est.): 8,192,880. Capital and largest city : Vienna 2,041,300. Other large cities : Graz,; Linz,; Salzburg,; Innsbruck. Monetary units : Euro (formerly schilling) Language : German 98% (official nationwide); Slovene, Croatian, Hungarian. Religion: Roman Catholic 74%, Protestant 5%, Islam 4%, other 17% National name: Republik Österreich